Abstract

A question of interest to geodesists and geologists is whether or not the continents are moving. The answer from modern observation is in the negative. World‐longitude operations by radio carried out under the auspices of the International Longitude Commission indicated only shifts in longitude which are within the errors of observation [see 1 of “References” at end of paper]. A similar result was found for the radio operations at Kornok, Greenland [2]. No definite changes in mean latitude are shown by observations made with the zenith‐instruments of Washington, Greenwich, and the International Latitude stations when modern star‐places and proper motions are used in the reductions.

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